WASET
    P. S. Seboletswe and  Z. Mkhize and  L. M. Katata-Seru,  HPTLC Fingerprint Profiling of Protorhus longifolia Methanolic Leaf Extract and Qualitative Analysis of Common Biomarkers.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2019, vol. 156(12). 553 - 557
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10010946.